Definition

1. Noun:
   • The outer body wall of an insect: A non-cellular, protective layer secreted by the epidermis, forming the exoskeleton of arthropods like insects. It is primarily composed of chitin and proteins.

Usage Examples

• Noun:
  • The insect's cuticula provides both structural support and a barrier against water loss.
  • Scientists studied the composition of the beetle's hardened cuticula.

Advanced Usage

• "Cuticula" in a biological context: The term is highly specialized and used almost exclusively in entomology and invertebrate zoology to describe the complex, layered structure of the arthropod integument.
  • The research paper detailed the lipid layer of the cuticula that prevents desiccation.

Variants and Related Words

• Cuticle (n): A more general term. In zoology, it can be synonymous with . In human anatomy, it refers to the dead skin at the base of a fingernail or toenail.
  • The entomologist referred to the exoskeleton as the cuticle.
• Cuticular (adj): Relating to or of the nature of a cuticula.
  • The cuticular wax repels water.

Synonyms

• Exoskeleton: The rigid external covering for the body, providing support and protection.
• Integument: A general term for a natural outer covering or coat, such as skin, a shell, or a rind.

Related Phrases

(Note: As a highly technical noun, "cuticula" does not form standard phrasal verbs or idioms.)

Related Idioms

(Note: There are no common idioms using the word "cuticula.")

Noun

1. the outer body wall of an insect